Stanchion



Sepit. 4 1926.

STANCHION Flad. NOV. 30, 1925 lgatented ept. 14, 1926.

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COIVIANY, A. CORPORATION F LLEN'GS.

sranoi'arorv. 1

il is an end elevation ot the same;

5 and G are vertical sections on the lines 5 and 6 respectively ot Fig. 3.

ln the embodiment illustrated, the stanchion consists of top and bottom bars and 11 respectively, connected by means of a lined side bar 12 and having a movable sidebar 13 hingedly connected to the bottom bar 11. The top bar 10 is hollow so as to receive the tinger 111 which is integral with the operating lever 15 and hingedly connected at 16 to the upper end ot the side bar 13. The linger 141 has a longitudinal slot 17 through which passes a pin 18 which is loosely mounted at its two ends in slots 19 as shown in Fig. 6. This serves as a stop for the outer swing of the side bar 13 while the side slots 19 permit the rod 18 to move up and down to permit the movement of the ringer let.`

The outer end ot the nger 14C carries a Y hool; 2O which is adapted to engage the pin o1 in the hollow top bar 10 when the side bar 18 is moved to closed position.

fi. latch member 22 is hingedly carried in the operating lever 15 by means ot a pin 23 and has a hook 2e' which'is adapted to engage an opening 25 in the upper surface or' the top bar 10 when the side bar isclosed. rllhe lower end 22 lies in a depression in the operating lever 15 and carries a spring 26 which normally presses the hook 211 toward the linger 1a.

rhus it will be seen that inorder to open the stanchion it yis necessary to simultaneously litt both ot' the hooks 2O and 24. To do this the operator grasps the lever 15 and the u iper portion oi the side bar 13, his thumb resting upon the end of the lever 22a. A pressure will then result in lifting both of the hoolrs 2() and 2Liso that they will clear the pin 21 and the edge of the opening 25 respectively when the movable bar 13 can he drawn back. W ith asingle fastening means it hasotten been possible for a cow to swing her .head so that her horn strikes the releasing mechanism on the movable side bar when, it her neck happens to be pressing on the side bar it will open and the cow will be released. By this arrangement, however, a second locking means is provided which is so located that the cow cannot strike it with her horn and consequently she will be'unable to open the stanchion.

llo close the stanchion, the side bar 13 is s forced inwardly when the sloping end of the hook 2O will ride up over the pin 21, when gravity will cause it to drop into position as shown in Fig. At the same time the sloping end ot' the hook 211 will ride up over the outer end ot the hollow top bar 10 until the hook Q11 is able to drop into the opening 25.- i

While l have shown and described buta single embodiment ot this invention, it is to be understood that it is capable of many modifications. Changes therefore in the construction and arrangement may be made which do not depart from the spirit and scope ot the invention as disclosed in the appended claims.

l claim 1. ln a s anchion, a top tube and a movble side bar, a linger hingedly connected to the side bar and havingl a hook adapted to engage a pin in the top tube, and a spring pressed latch member hingedly connected to said linger and adapted to engage aV portion et said top tube.V A

2. ln a stanchion, a hollow top bar and a movable side bar5 a` latch linger hingedly connected to the side bar and adapted to lJi engage a portion ot the top bar. and a spring pressed latch member hingedly carried by said movable bar and adapted to engage a portion of said top bar.

in a stanchion, hollovlv top bar and aV movable side bar7 a linger iingedly con'- nected to the side bar and having a hook adapted to engage a pin 'in the top bar, and y spring` pressed latch member hingedly connected to said linger and adapted to engage a portion ot said top bar, said latch member Y lying partly in a depression in said linger so i to be protected thereby.

4. ln a stanchion, a hollow top bar and a movable side bari a finger hingedly-con nected to the side bar and having a hoolr adaptedito engage av pin in the top bar, a I

spring pressed latch member hingedly oonneeted to said finger and adapted to engage a portion of said top bar, said finger having e. longitudinal slot, and a pin extending transversely of said top bar and looselyy mounted in slots therein.

in e stunohion, a tube and a movable side ber, u finger hingedly connected to the side bar und adapted to engage a portion of the tube, and a spring pressed latch member 1f' hingedly Carried by said movable bar and adopted to engage aV portion or" Said tube, one latch looking Within the tube and the other locking on the outside of said tube.

In testimony whereof have hereunto set I6 my hand this 24 day of November 1925.

HGVARD J. FERRIS. 

